Yvonne Rainer is an influential American dancer, choreographer, and filmmaker, known for her pioneering work in the field of modern dance. Born on November 29, 1934, in San Francisco, California, she was a key figure in the Judson Dance Theater, which emerged in the 1960s and challenged traditional dance forms by incorporating everyday movements and theatrical elements. In addition to her dance career, Rainer has made significant contributions to cinema, creating experimental films that often explore themes of identity and the human experience. Her notable works include the film Lives of Performers and the dance piece Trio A, which exemplify her innovative approach to performance art.